Clock



M. HORN.

CLOCK. APPLICATION mgr) NOV. 12, 1921.

1,420, 549. Patented June 20, 1922.

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M-,HORN. CLOCK.

APPLICATION FILED NOV-12, I92I. 1,420,549.

Patented June 20, 1922 2 SHEETS-SHEET I Max florn. INVENTOR MA BY m 61m WITNESS:

ATTORNEY PATENT OFFICE.

MAX HORN,

0F TOWER CITY, PENNSYLVANIA.

CLOCK.

Application filed November 12, 1921.

17 '0 all whom it may concern Be it known that 1, MAX Horn, a citizen of the United States, residing at Tower City, in the county of Schuylkill and State of Pennsylvania, have invented new and useful Improvements in Clocks, of which the following is a specification.

This invention relates to improvements in clocks and has for an object the provision of an improved gravity operated clock, wherein the use of springs is dispensed with, the construction being such as to materially reduce the parts and simplify the operation of the clock.

Another obj ect of theinvention is the provision of a clock of the above character, having novel means for setting the hands.

A further object is the provision of a simple, novel and improved means for securing the hands to the clock.

With the above and other objects in view, the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanyin drawings and pointed out in the appende claim.

In the drawings Figure 1 is a front elevation of a clock constructed in accordance with the invention. I

Figure 2 is a side view of the same.

Figure 3 is an enlarged rear elevation illustrating a portion of the clock mechanism.

Figure 1 is an enlarged. side elevation of the clock mechanism with, the casing broken away and shown in section.

Figure 5 is a detail rear elevation of a portion of the clock mechanism.

Figure (3 is a front view of the clock mechanism removed from the casing.

Figure 7 is a detail view illustrating the means for locking the operating gear to its shaft.

Figure 8 is an enlarged sectional view illustrating the manner of securing the hands in position.

Referring in detail to the drawings, wherein like characters of reference denote corresponding parts, the reference character 10 indicates the base, which may be of any desired ornamental configuration and which has rising therefrom spaced standards 11, the latter being connected at their ends by means of a bar 12. This bar is Specification of Letters Patent.

Patented June 20, 1922. Serial No. 514,619.

preferably arch shaped as shown, so as to add to the appearance; of the clock which is indicated generally at 13 and whose casing 14: is shaped to be received within the arch 12. The clock 13 is capable of vertical movement, so that its casing 1% has extending from opposite sides thereof arms 15, which have openings in their outer ends for the reception of the standards 11, so as to provide guides for the clock during its movement.

Also rising ate the standards 11 is a rack bar 16, whose upper end is secured to the arch 12. This rack bar 16 passes through aligned openings 17 provided in the casing 14:, so that the clock may be freely movable both on the standards 11 and the rack bar 16. L0- cated within the casing 14: is a weight 18, which is also provided with an opening for the passage of the rack weight being designed to increase the weight of the clock mechanism, so that the latter will operate in a manner hereinafter described to impart proper movement to the clock hands.

The clock mechanism, which is of a simple and eflicient character, includes a pinion 19, which is fast upon a shaft 20. This shaft is mounted in suitable bearings provided in arms 21, which are carried bya plate 22 and which form; part of substantially L- shaped brackets" carried by said plate, the said brackets having their ends opposite the plates connected together, to provide a rigid mounting for the shaft 20. Loosely mounted on the shaft 20 is a gear 23, and this gear carries a pivotally mounted spring actuated dog 24, which engages the teeth of a ratchet wheel 25, fast upon the shaft 20. The gear 23 will thus be locked to the shaft 20 when the latter is rotating in one directi on but will permit of independent rotation of the shaft, when the latter is rotating in a reverse direction. The gear 23 engages a pinion 26, which is mounted upon a shaft 27, while also mounted upon this shaft is a pinion 28, which engages a gear 29. This last named gear engages a gear 30, which in turn engages a pinion 31, while mounted upon the shaft of the pinion 31 is a gear 32. This last mentioned gear engages a pinion which is fast upon a shaft with a gear at and the latter operates a pinion 35 for driving the escapement 36. The gear 30 is mounted on an arbor 37, upon which is from the base 10 intermedibar 16, the said i secured a pinion 3S and the latter engages a gear 2-35) and a shat't 4-0. Mounted upon the shalt 41-0 is a pinion ll, which engages a gear 42 on the inner end of a sleeve 43. This sleeve rotates upon a sleeve 414-. which is mounted on the arhor 37. The inner end oi the sleeve 4L4: czn'ries a pinion 45, which is driven From a gear 4:6 upon the shaft- 4!) and arts to rotate the minute hand 4;? which is secured. upon the outer end of the said sleeve 451:. The hour hand 48, is secured upon the outer end of the sleeve 4:3 and is held in position upon said sleeve by the minute hand 47, the latter having a threaded engagement with the outer end of the sleeve as shown at 19.

l lngal ing the gear 39 is a gear which is adapted to be manually rotated to set the hands of the clock. For this purpose there is provided a pinion 51 which is secured upon the inner end 01'? a shaft 52, the latter being mounted for sliding movement in a hearing 53 and normally torced away from the gear 50 by means 0; a spring- 541;. which hears against the hearing 53 and a collar 55 upon the shaft 52. The outer end of this shaft provided with a knob '56. by means of which it may he operated. hen it is desired to set the hands of the clock. the shaft is moved i'i'rward until the pinion 51. engages the gear '50. whereupon the sleeves l3 and i l of the hands 4.? and L8 may he rotated through the gearing just described.

In the operation of the clock, the weight of the latter will cause the clock to slowly descend, guided by the standards 11. This downward movement will impart rotation to the mechanism thii'ouglgi the rack 16 and pinion 19, the gear 23 which controls the operation of the clock mechanism being locked to the shaft 20 through the dog 24:

and ratchet wheel 25. xeitti'ir the cloel; has irached. the limit of its downward movei'uent, or at any point during this movement. the said clock may he manually moved upward. Thu-inn; this upward movement. the clock mechanism is released 't'rom the rack 16. as the gear 223 is tree on the shai't 20 atthis time. i

The invention is susccptihle of various changes in its form, proportiong' and minor details of construction and the right is herein reserved to make such changes as properly fall within the scope of the appended. claim.

Having descrihcd the invention what is claimed isrclock embodying a hase. a pair oi" spaced parallel guid standards rising from the base. means connecting; the upper ends of the standards a clock casing, arms er;-

tending' from the opposite sides oi the casing and slidingly er mg: the parallel standanism within the (using, zed within the casii'irj, a rar'lc d ng); upward troin the base hehe standards and throu gh the rlorl: and weight and coiniected to the sta ulard connecting means. suhstantially i...-shapcd brackets mounted within the clock case and having one of their ends secured to the frame of the clock median 1m and their opposite ends connected tnm-ethcn a shalt having one end mounted in one of the brackets. r pinion secured upon the shah: and engaging the teeth of the rack bill} a gear loose u on the shaft and operatively connected to the clock inec ianism and n'ieans wherehy the gear will be locked to the shaft when the latter is rotated in one direction only.

In testimony whereof I atlix my signature. 

